Question 1

Is 504 TWU a tax-exempt 501(c)(3)?

Accepted Answer

Yes — 504 TWU is recognised by the IRS as a 501(c)(5) organisation (EIN 11-1550788). The IRS recognised 504 TWU as tax-exempt in August 1944.

Question 2

What is 504 TWU's EIN?

Accepted Answer

504 TWU's Employer Identification Number (EIN) is 11-1550788. The EIN was assigned by the IRS in August 1944. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does 504 TWU do?

Accepted Answer

Support the activities of the labor union. Represent its members in labor relations with member employers, which includes grievance negotiations, labor contracts, and arbitrations

Question 4

Where is 504 TWU located?

Accepted Answer

504 TWU is located at 303 Linden Street, Massapequa Park, NY, 11762.

Question 5

When was 504 TWU founded or recognised by the IRS?

Accepted Answer

504 TWU was recognised by the IRS as a tax-exempt organisation in August 1944. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is 504 TWU's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2024), 504 TWU reported $2.2M in total revenue and $1.9M in total expenses.

Question 7

Has 504 TWU been auto-revoked by the IRS?

Accepted Answer

No — 504 TWU (EIN 11-1550788) does not appear on the IRS Auto-Revocation List. Givalgo Discover cross-references the IRS Auto-Revocation List on every profile load; if status changes, this page reflects it.

Question 8

Is 504 TWU listed in IRS Publication 78?

Accepted Answer

Givalgo Discover did not find 504 TWU in the most recent IRS Publication 78 download. Some tax-exempt organisations (e.g., churches and government instrumentalities) are eligible to receive deductible contributions without appearing in Pub 78 — verify directly with the IRS if uncertain.

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504 TWU

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